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syntax.c
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/*
* syntax.c -- presentation format syntax test cases
*
* Copyright (c) 2023, NLnet Labs. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#include <assert.h>
#include <limits.h>
#include <stdarg.h>
#include <setjmp.h>
#include <string.h>
#include <stdlib.h>
#include <cmocka.h>
#if !_WIN32
#include <unistd.h>
#endif
#include "zone.h"
#include "diagnostic.h"
#include "tools.h"
#define PAD(literal) \
literal \
"\0\0\0\0\0\0\0\0" /* 0 - 7 */ \
"\0\0\0\0\0\0\0\0" /* 8 - 15 */ \
"\0\0\0\0\0\0\0\0" /* 16 - 23 */ \
"\0\0\0\0\0\0\0\0" /* 24 - 31 */ \
"\0\0\0\0\0\0\0\0" /* 32 - 39 */ \
"\0\0\0\0\0\0\0\0" /* 40 - 47 */ \
"\0\0\0\0\0\0\0\0" /* 48 - 55 */ \
"\0\0\0\0\0\0\0\0" /* 56 - 63 */ \
""
// FIXME: test for unterminated string here too!
struct newline_test {
const char *input;
size_t line[2];
};
static int32_t newline_test_accept_rr(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
struct newline_test *test;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
(void)user_data;
assert(user_data);
test = (struct newline_test *)user_data;
if (owner->octets[1] == '1')
return parser->file->line == test->line[0] ? 0 : ZONE_SYNTAX_ERROR;
else if (owner->octets[1] == '2')
return parser->file->line == test->line[1] ? 0 : ZONE_SYNTAX_ERROR;
else
return ZONE_SYNTAX_ERROR;
}
/*!cmocka */
void newlines(void **state)
{
static const char quoted_lf_text[] =
PAD("1. TXT \"foo\nbar\n\"\n2. TXT \"foobar\"");
static const char escaped_lf_text[] =
PAD("1. TXT foo\\\nbar\\\n\n2. TXT \"foobar\"");
static const char grouped_lf_text[] =
PAD("1. TXT (\nfoo\nbar\n)\n2. TXT \"foobar\"");
static const char plain_lf_text[] =
PAD("1. TXT \"foo bar\"\n2. TXT \"foo baz\"");
static const char control_lf_text[] =
PAD("$TTL 3600\n1. TXT \"foo bar\"\n2. TXT \"foo baz\"");
static const char blank_lf_text[] =
PAD("\n1. TXT \"foo bar\"\n\n2. TXT \"foo baz\"");
static const uint8_t origin[] = { 0 };
static const struct newline_test tests[] = {
{ quoted_lf_text, { 1, 4 } },
{ escaped_lf_text, { 1, 4 } },
{ grouped_lf_text, { 1, 5 } },
{ plain_lf_text, { 1, 2 } },
{ control_lf_text, { 2, 3 } },
{ blank_lf_text, { 2, 4 } }
};
(void)state;
for (size_t i=0, n = sizeof(tests)/sizeof(tests[0]); i < n; i++) {
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
int32_t result;
memset(&options, 0, sizeof(options));
options.accept.callback = newline_test_accept_rr;
options.origin.octets = origin;
options.origin.length = sizeof(origin);
options.default_ttl = 3600;
options.default_class = ZONE_CLASS_IN;
fprintf(stderr, "INPUT: \"%s\"\n", tests[i].input);
result = zone_parse_string(
&parser, &options, &buffers, tests[i].input, strlen(tests[i].input), (void*)&tests[i]);
assert_int_equal(result, ZONE_SUCCESS);
}
}
struct strings_test {
const char *text;
int32_t code;
struct {
size_t length;
const uint8_t *octets;
} rdata;
};
static int32_t strings_callback(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
struct strings_test *test = (struct strings_test *)user_data;
(void)parser;
(void)owner;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
if (rdlength != test->rdata.length)
return ZONE_SYNTAX_ERROR;
if (memcmp(rdata, test->rdata.octets, rdlength) != 0)
return ZONE_SYNTAX_ERROR;
return 0;
}
#define RDATA(...) (const uint8_t[]){ __VA_ARGS__ }
#define TEXT16 \
"0123456789abcdef"
#define TEXT256 \
TEXT16 TEXT16 TEXT16 TEXT16 \
TEXT16 TEXT16 TEXT16 TEXT16 \
TEXT16 TEXT16 TEXT16 TEXT16 \
TEXT16 TEXT16 TEXT16 TEXT16
#define TEXT255 \
TEXT16 TEXT16 TEXT16 TEXT16 \
TEXT16 TEXT16 TEXT16 TEXT16 \
TEXT16 TEXT16 TEXT16 TEXT16 \
TEXT16 TEXT16 TEXT16 \
"0123456789abcde"
#define RDATA16 \
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
#define RDATA255 \
RDATA16, RDATA16, RDATA16, RDATA16, \
RDATA16, RDATA16, RDATA16, RDATA16, \
RDATA16, RDATA16, RDATA16, RDATA16, \
RDATA16, RDATA16, RDATA16, \
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e'
/*!cmocka */
void strings(void **state)
{
(void)state;
static const uint8_t rdata_maximum[] = { 255, RDATA255 };
static const uint8_t rdata_empty[] = { 0 };
static const uint8_t rdata_0[] = { 1, 0 };
static const uint8_t rdata_0foo[] = { 4, 0, 'f', 'o', 'o' };
static const uint8_t rdata_foo0[] = { 4, 'f', 'o', 'o', 0 };
static const uint8_t rdata_0f0o[] = { 4, 0, 'f', 0, 'o' };
static const uint8_t rdata_foo_bar[] = { 7, 'f', 'o', 'o', ' ', 'b', 'a', 'r' };
static const struct strings_test tests[] = {
// contiguous too long
{ TEXT256, ZONE_SYNTAX_ERROR, { 0, NULL } },
// quoted too long
{ "\"" TEXT256 "\"", ZONE_SYNTAX_ERROR, { 0, NULL } },
// contiguous maximum length
{ TEXT255, 0, { 256, rdata_maximum } },
// quoted maximum length
{ TEXT255, 0, { 256, rdata_maximum } },
// quoted empty
{ "\"\"", 0, { 1, rdata_empty } },
// contiguous null
{ "\\000", 0, { 2, rdata_0 } },
// quoted null
{ "\"\\000\"", 0, { 2, rdata_0 } },
// contiguous starting with null
{ "\\000foo", 0, { 5, rdata_0foo } },
// quoted staring with null
{ "\"\\000foo\"", 0, { 5, rdata_0foo } },
// contiguous ending with null
{ "foo\\000", 0, { 5, rdata_foo0 } },
// quoted ending with null
{ "\"foo\\000\"", 0, { 5, rdata_foo0 } },
// contiguous with multiple nulls
{ "\\000f\\000o", 0, { 5, rdata_0f0o } },
// quoted with multiple nulls
{ "\"\\000f\\000o\"", 0, { 5, rdata_0f0o } },
// contiguous with escaped space
{ "foo\\ bar", 0, { 8, rdata_foo_bar } },
// quoted with space
{ "\"foo bar\"", 0, { 8, rdata_foo_bar } }
};
static const uint8_t origin[] = { 3, 'f', 'o', 'o', 0 };
for (size_t i=0, n=sizeof(tests)/sizeof(tests[0]); i < n; i++) {
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
char input[512] = { 0 };
size_t length;
int32_t code;
(void)snprintf(input, sizeof(input), "foo. TXT %s", tests[i].text);
length = strlen(input);
memset(&options, 0, sizeof(options));
options.accept.callback = strings_callback;
options.origin.octets = origin;
options.origin.length = sizeof(origin);
options.default_ttl = 3600;
options.default_class = ZONE_CLASS_IN;
fprintf(stderr, "INPUT: '%s'\n", input);
code = zone_parse_string(&parser, &options, &buffers, input, length, (void *)&tests[i]);
assert_int_equal(code, tests[i].code);
}
}
struct names_test {
const char *input;
int32_t code;
struct {
size_t length;
const uint8_t *octets;
} owner;
};
static int32_t names_callback(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
struct names_test *test = (struct names_test *)user_data;
(void)parser;
(void)owner;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
if (owner->length != test->owner.length)
return ZONE_SYNTAX_ERROR;
if (memcmp(owner->octets, test->owner.octets, owner->length) != 0)
return ZONE_SYNTAX_ERROR;
return 0;
}
/*!cmocka */
void names(void **state)
{
(void)state;
static const char only_rel_label_too_long[] =
"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef";
static const char only_abs_label_too_long[] =
"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef.";
static const char first_label_too_long[] =
"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef.foo.";
static const char last_rel_label_too_long[] =
"foo.0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef";
static const char last_abs_label_too_long[] =
"foo.0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef.";
static const char rel_name_max_len[] =
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef012345678";
static const char rel_name_too_long[] =
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789";
static const char abs_name_max_len[] =
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abc.";
static const char abs_name_too_long[] =
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcde."
"0123456789abcdef0123456789abcd.";
static const char only_null_labels[] = "..";
static const char last_label_is_null[] = "foo..";
static const char first_label_is_null[] = "..foo";
static const char star_dot_3[] = "\\042.\\042.\\042.wcent.nlnetlabs.nl.";
static const uint8_t owner_abs_0[] = { 1, 0, 0 };
static const uint8_t owner_abs_spc[] = { 1, ' ', 0 };
static const uint8_t owner_abs_0foo[] = { 4, 0, 'f', 'o', 'o', 0 };
static const uint8_t owner_abs_00foo[] = { 5, 0, 0, 'f', 'o', 'o', 0 };
static const uint8_t owner_abs_foo0[] = { 4, 'f', 'o', 'o', 0, 0 };
static const uint8_t owner_abs_foo00[] = { 5, 'f', 'o', 'o', 0, 0, 0 };
static const uint8_t owner_abs_foodot[] = { 4, 'f', 'o', 'o', '.', 0 };
static const uint8_t owner_rel_foodot[] = { 4, 'f', 'o', 'o', '.', 3, 'f', 'o', 'o', 0 };
static const uint8_t owner_rel_max_len[] = {
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
25,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8',
3,'f','o','o',
0 };
static const uint8_t owner_abs_max_len[] = {
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
31,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e',
29,'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f',
'0','1','2','3','4','5','6','7','8','9','a','b','c',
0 };
static const uint8_t owner_star_dot_3[] = {
1, '*', 1, '*', 1, '*', 5, 'w', 'c', 'e', 'n', 't', 9, 'n', 'l', 'n', 'e', 't', 'l', 'a', 'b', 's', 2, 'n', 'l', 0
};
static struct names_test tests[] = {
{ only_rel_label_too_long, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ only_abs_label_too_long, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ first_label_too_long, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ last_rel_label_too_long, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ last_abs_label_too_long, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ rel_name_max_len, 0, { 255, owner_rel_max_len } },
{ rel_name_too_long, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ abs_name_max_len, 0, { 255, owner_abs_max_len } },
{ abs_name_too_long, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ only_null_labels, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ last_label_is_null, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ first_label_is_null, ZONE_SYNTAX_ERROR, { 0, NULL } },
{ "\\0.", ZONE_SYNTAX_ERROR, { 0, NULL } },
{ "\\00.", ZONE_SYNTAX_ERROR, { 0, NULL } },
{ "\\000.", 0, { 3, owner_abs_0 } },
{ "\\ .", 0, { 3, owner_abs_spc } },
{ "\\000foo. ", 0, { 6, owner_abs_0foo } },
{ "\\000\\000foo.", 0, { 7, owner_abs_00foo } },
{ "foo\\000.", 0, { 6, owner_abs_foo0 } },
{ "foo\\000\\000.", 0, { 7, owner_abs_foo00 } },
{ "foo\\..", 0, { 6, owner_abs_foodot } },
{ "foo\\.", 0, { 10, owner_rel_foodot } },
{ star_dot_3, 0, { sizeof(owner_star_dot_3), owner_star_dot_3 } }
};
static const uint8_t origin[] = { 3, 'f', 'o', 'o', 0 };
for (size_t i=0, n=sizeof(tests)/sizeof(tests[0]); i < n; i++) {
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
char input[512] = { 0 };
size_t length;
int32_t code;
(void)snprintf(input, sizeof(input), "%s A 192.168.0.1", tests[i].input);
length = strlen(input);
memset(&options, 0, sizeof(options));
options.accept.callback = names_callback;
options.origin.octets = origin;
options.origin.length = sizeof(origin);
options.default_ttl = 3600;
options.default_class = ZONE_CLASS_IN;
fprintf(stderr, "INPUT: '%s'\n", input);
code = zone_parse_string(&parser, &options, &buffers, input, length, &tests[i]);
assert_int_equal(code, tests[i].code);
}
}
struct ttls_test {
const char *text;
bool non_strict;
bool pretty_ttls;
int32_t code;
uint32_t ttl;
};
static int32_t tests_callback(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
const struct ttls_test *test = (const struct ttls_test *)user_data;
(void)parser;
(void)owner;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
if (ttl != test->ttl)
return ZONE_SYNTAX_ERROR;
return 0;
}
/*!cmocka */
void ttls(void **state)
{
(void)state;
static const struct ttls_test tests[] = {
{ PAD("foo. 0 A 192.168.0.1"), false, false, ZONE_SUCCESS, 0 },
{ PAD("foo. 1 A 192.168.0.1"), false, false, ZONE_SUCCESS, 1 },
{ PAD("foo. 2147483647 A 192.168.0.1"), false, false, ZONE_SUCCESS, 2147483647 },
{ PAD("foo. 2147483648 A 192.168.0.1"), false, false, ZONE_SEMANTIC_ERROR, 0 },
{ PAD("foo. 2147483648 A 192.168.0.1"), true, false, ZONE_SUCCESS, 2147483648 },
{ PAD("foo. 4294967295 A 192.168.0.1"), true, false, ZONE_SUCCESS, 4294967295 },
{ PAD("foo. 4294967296 A 192.168.0.1"), true, false, ZONE_SYNTAX_ERROR, 0 },
{ PAD("foo. 1d A 192.168.0.1"), false, false, ZONE_SYNTAX_ERROR, 0 },
{ PAD("foo. 1d A 192.168.0.1"), false, true, ZONE_SUCCESS, 86400 }
};
static const uint8_t origin[] = { 3, 'f', 'o', 'o', 0 };
for (size_t i=0, n=sizeof(tests)/sizeof(tests[0]); i < n; i++) {
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
const char *str = tests[i].text;
size_t len = strlen(str);
int32_t code;
memset(&options, 0, sizeof(options));
options.accept.callback = tests_callback;
options.origin.octets = origin;
options.origin.length = sizeof(origin);
options.default_ttl = 3600;
options.default_class = ZONE_CLASS_IN;
options.secondary = tests[i].non_strict;
options.pretty_ttls = tests[i].pretty_ttls;
fprintf(stderr, "INPUT: '%s'\n", str);
code = zone_parse_string(&parser, &options, &buffers, str, len, (void*)&tests[i]);
assert_int_equal(code, tests[i].code);
}
}
static int32_t dummy_callback(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
size_t *count = (size_t *)user_data;
(void)parser;
(void)owner;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
(*count)++;
return 0;
}
static int32_t parse(const char *text, size_t *count)
{
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
const uint8_t origin[] = { 0 };
memset(&options, 0, sizeof(options));
options.accept.callback = &dummy_callback;
options.origin.octets = origin;
options.origin.length = sizeof(origin);
options.default_ttl = 3600;
options.default_class = 1;
fprintf(stderr, "INPUT: '%s'\n", text);
return zone_parse_string(&parser, &options, &buffers, text, strlen(text), count);
}
static char *generate_include(const char *text)
{
char *path = get_tempnam(NULL, "zone");
if (path) {
FILE *handle = fopen(path, "wbx");
if (handle) {
int result = fputs(text, handle);
(void)fclose(handle);
if (result != EOF)
return path;
}
free(path);
}
return NULL;
}
diagnostic_push()
msvc_diagnostic_ignored(4996)
static void remove_include(const char *path)
{
unlink(path);
}
diagnostic_pop()
static int32_t parse_as_include(const char *text, size_t *count)
{
int32_t code;
char *path = generate_include(text);
assert_non_null(path);
char dummy[16];
int length = snprintf(dummy, sizeof(dummy), "$INCLUDE \"%s\"\n", path);
assert_true(length > 0 && length < INT_MAX - ZONE_BLOCK_SIZE);
char *include = malloc((size_t)length + 1 + ZONE_BLOCK_SIZE);
assert_non_null(include);
(void)snprintf(include, (size_t)length + 1, "$INCLUDE \"%s\"\n", path);
code = parse(include, count);
free(include);
remove_include(path);
free(path);
return code;
}
/*!cmocka */
void who_dis(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *dat = PAD(" TXT \"dat\"");
static const char *dis_n_dat = PAD("dis. TXT \"dis\"\n"
" TXT \"dat\"");
code = parse(dat, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
code = parse(dis_n_dat, &count);
assert_int_equal(code, ZONE_SUCCESS);
assert_true(count == 2);
}
/*!cmocka */
void quote_no_unquote(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *no_unquote = PAD("foo. TXT \"unterminated string");
code = parse(no_unquote, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
code = parse_as_include(no_unquote, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
}
/*!cmocka */
void not_so_famous_last_words(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *last_words = PAD("; not so famous last words");
code = parse(last_words, &count);
assert_int_equal(code, ZONE_SUCCESS);
assert_true(count == 0);
code = parse_as_include(last_words, &count);
assert_int_equal(code, ZONE_SUCCESS);
assert_true(count == 0);
}
/*!cmocka */
void no_famous_last_words(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *empty = PAD(" ");
code = parse(empty, &count);
assert_int_equal(code, ZONE_SUCCESS);
assert_true(count == 0);
code = parse_as_include(empty, &count);
assert_int_equal(code, ZONE_SUCCESS);
assert_true(count == 0);
}
/*!cmocka */
void bad_a_rrs(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *no_a = PAD("foo. A ; no-address");
static const char *double_a = PAD("foo. A 192.168.0.1 192.168.0.2");
static const char *bad_a = PAD("foo. A 192.168.0.256");
code = parse(no_a, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
code = parse(double_a, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
code = parse(bad_a, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
}
/*!cmocka */
void bad_ttls(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *too_little = PAD("$TTL ; no time");
static const char *too_late = PAD("$TTL 2147483648"); // one second too much
static const char *too_much = PAD("$TTL 1 2"); // trailing data
code = parse(too_little, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
code = parse(too_late, &count);
assert_int_equal(code, ZONE_SEMANTIC_ERROR);
code = parse(too_much, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
}
/*!cmocka */
void bad_origins(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *no_origin = PAD("$ORIGIN ; no origin");
static const char *extra_origin = PAD("$ORIGIN a. b.");
static const char *relative_origin = PAD("$ORIGIN foo");
code = parse(no_origin, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
code = parse(extra_origin, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
code = parse(relative_origin, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
}
/*!cmocka */
void bad_includes(void **state)
{
(void)state;
int32_t code;
size_t count = 0;
static const char *no_include = PAD("$INCLUDE ; no include");
code = parse(no_include, &count);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
char *path = generate_include(" ");
assert_non_null(path);
FILE* handle = fopen(path, "wb");
assert_non_null(handle);
char dummy[32];
int length = snprintf(dummy, sizeof(dummy), "$INCLUDE \"%s\" foo. bar\n", path);
assert_true(length > 0 && length < INT_MAX - ZONE_BLOCK_SIZE);
char *include = malloc((size_t)length + 1 + ZONE_BLOCK_SIZE);
assert_non_null(include);
(void)snprintf(include, (size_t)length + 1, "$INCLUDE \"%s\" foo. bar.\n", path);
int result = fputs(include, handle);
assert_true(result >= 0);
(void)fclose(handle);
code = parse(include, &count);
remove_include(path);
free(path);
free(include);
assert_int_equal(code, ZONE_SYNTAX_ERROR);
}
static int32_t include_origin_callback(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
(void)parser;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
(void)user_data;
static const uint8_t foobaz[] = { 3, 'f', 'o', 'o', 3, 'b', 'a', 'z', 0 };
assert(owner);
if (owner->length != 9 || memcmp(owner->octets, foobaz, 9) != 0)
return ZONE_SEMANTIC_ERROR;
return 0;
}
/*!cmocka */
void include_with_origin(void **state)
{
(void)state;
char *path = generate_include("foo TXT bar");
assert_non_null(path);
char dummy[32];
int length = snprintf(dummy, sizeof(dummy), "$INCLUDE \"%s\" baz.", path);
assert_true(length > 0 && length < INT_MAX - ZONE_BLOCK_SIZE);
char *include = malloc((size_t)length + 1 + ZONE_BLOCK_SIZE);
assert_non_null(include);
(void)snprintf(include, (size_t)length + 1, "$INCLUDE \"%s\" baz.", path);
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
static const uint8_t origin[] = { 3, 'b', 'a', 'r', 0 };
memset(&options, 0, sizeof(options));
options.accept.callback = &include_origin_callback;
options.origin.octets = origin;
options.origin.length = sizeof(origin);
options.default_ttl = 3600;
options.default_class = 1;
int32_t code = zone_parse_string(&parser, &options, &buffers, include, strlen(include), NULL);
remove_include(path);
free(path);
free(include);
assert_int_equal(code, ZONE_SUCCESS);
}
static int32_t no_origin_callback(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
(void)parser;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
(void)user_data;
static const uint8_t foobar[] = { 3, 'f', 'o', 'o', 3, 'b', 'a', 'r', 0 };
assert(owner);
if (owner->length != 9 || memcmp(owner->octets, foobar, 9) != 0)
return ZONE_SEMANTIC_ERROR;
return 0;
}
/*!cmocka */
void include_without_origin(void **state)
{
(void)state;
char *path = generate_include("foo TXT bar");
assert_non_null(path);
char dummy[32];
#define FMT "$INCLUDE \"%s\""
int length = snprintf(dummy, sizeof(dummy), "$INCLUDE \"%s\"", path);
assert_true(length > 0 && length < INT_MAX - ZONE_BLOCK_SIZE);
char *include = malloc((size_t)length + 1 + ZONE_BLOCK_SIZE);
assert_non_null(include);
(void)snprintf(include, (size_t)length + 1, "$INCLUDE \"%s\"", path);
#undef FMT
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
static const uint8_t origin[] = { 3, 'b', 'a', 'r', 0 };
memset(&options, 0, sizeof(options));
options.accept.callback = &no_origin_callback;
options.origin.octets = origin;
options.origin.length = sizeof(origin);
options.default_ttl = 3600;
options.default_class = 1;
int32_t code = zone_parse_string(&parser, &options, &buffers, include, strlen(include), NULL);
remove_include(path);
free(path);
free(include);
assert_int_equal(code, ZONE_SUCCESS);
}
static int32_t reinstate_callback(
zone_parser_t *parser,
const zone_name_t *owner,
uint16_t type,
uint16_t class,
uint32_t ttl,
uint16_t rdlength,
const uint8_t *rdata,
void *user_data)
{
size_t *count = (size_t *)user_data;
static const uint8_t foobar[] = { 3, 'f', 'o', 'o', 3, 'b', 'a', 'r', 0 };
static const uint8_t foobaz[] = { 3, 'f', 'o', 'o', 3, 'b', 'a', 'z', 0 };
(void)parser;
(void)type;
(void)class;
(void)ttl;
(void)rdlength;
(void)rdata;
switch (*count) {
case 0:
if (owner->length != 9 || memcmp(owner->octets, foobar, 9) != 0)
return ZONE_SYNTAX_ERROR;
break;
case 1: // include
if (owner->length != 9 || memcmp(owner->octets, foobaz, 9) != 0)
return ZONE_SYNTAX_ERROR;
break;
case 2:
if (owner->length != 9 || memcmp(owner->octets, foobar, 9) != 0)
return ZONE_SYNTAX_ERROR;
break;
}
(*count)++;
return 0;
}
/*!cmocka */
void owner_is_reinstated(void **state)
{
// check closing of include reinstates owner
(void)state;
char *path = generate_include("foo.baz. TXT foobar");
assert_non_null(path);
char dummy[64];
#define FMT \
"foo.bar. TXT foobar\n" \
"$INCLUDE \"%s\" baz.\n" \
" TXT foobar"
int length = snprintf(dummy, sizeof(dummy), FMT, path);
assert_true(length > 0 && length < INT_MAX - ZONE_BLOCK_SIZE);
char *include = malloc((size_t)length + 1 + ZONE_BLOCK_SIZE);
assert_non_null(include);
(void)snprintf(include, (size_t)length + 1, FMT, path);
#undef FMT
size_t count = 0;
zone_parser_t parser;
zone_name_buffer_t name;
zone_rdata_buffer_t rdata;
zone_buffers_t buffers = { 1, &name, &rdata };
zone_options_t options;
static const uint8_t origin[] = { 3, 'b', 'a', 'r', 0 };
memset(&options, 0, sizeof(options));
options.accept.callback = &reinstate_callback;